Biskilog/BISKILOG POS BASIC/Company Setup/DatabaseLocation.cs

using BiskLog_Point_Of_Sale.Multiple_Login;
using BiskLog_Point_Of_Sale.Properties;
using Point_Of_Sale_Managment;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace BiskLog_Point_Of_Sale.Company_Setup
{
    public partial class DatabaseLocation : Form
    {
        Holder holder;
        SqlConnection cn;
        SqlCommand cm;
        SqlDataReader dr;
        DatabaseConn conn = new DatabaseConn();
        bool companyCreated = false;
        public static string company;
        public DatabaseLocation(Holder hol)
        {
            InitializeComponent();

            holder = hol;
        }
        private void Button2_Click(object sender, EventArgs e)
        {
            holder.moveToFirst();
        }
        private void BranchSet_CheckedChanged(object sender, EventArgs e)
        {
            if (branchSet.Checked)
            {
                button1.Text = "Set up new branch";
            }
            else if (!branchSet.Checked)
            {
                button1.Text = "LOGIN";
            }
        }
        private async void Button1_Click(object sender, EventArgs e)
        {
            if (password.Text.Equals(passwordConfirmation.Text))
            {
                if (!String.IsNullOrEmpty(serverLocation.Text) && !String.IsNullOrEmpty(password.Text) && !String.IsNullOrEmpty(txtusername.Text))
                {

                    if (branchSet.Checked)
                    {
                        Task<int> task = new Task<int>(() =>
                        {
                            try
                            {
                                serverLocation.Invoke(new Action(() =>
                                {
                                    if (!String.IsNullOrEmpty(portNumber.Text))
                                    {
                                        Settings.Default["Connection"] = passwordEncryption.Encrypt("Data Source=" + serverLocation.Text + "," + portNumber.Text + ";Database=BISK_POS;User ID= " + txtusername.Text +
                                    ";Password=" + password.Text);
                                    }
                                    else
                                    {
                                        Settings.Default["Connection"] = passwordEncryption.Encrypt("Data Source=" + serverLocation.Text +";Database=BISK_POS;User ID= " + txtusername.Text +
                                        ";Password=" + password.Text);
                                    }
                                    Settings.Default.Save();
                                    cn = new SqlConnection(conn.MyConnection());
                                    cn.Open();
                                    cm = new SqlCommand("Select company_name from tblCompanyDetails", cn);
                                    dr = cm.ExecuteReader();
                                    dr.Read();
                                    if (dr.HasRows && !String.IsNullOrEmpty(dr[0].ToString()))
                                    {
                                        company = dr[0].ToString();
                                        companyCreated = true;
                                    }
                                    dr.Close();
                                    cn.Close();
                                }));
                                return 1;
                            }
                            catch
                            {
                                cn.Close();
                                return 2;
                            }

                        });
                        holdup.Visible = true;
                        button1.Enabled = false;
                        button2.Enabled = false;
                        task.Start();
                        int result = await task;
                        if (result == 1)
                        {
                            if (companyCreated)
                            {
                                holder.moveToFinalBranch();
                            }
                            else
                            {
                                string title = "Company not set up";
                                string message = "Company hasn't been setup properly, navigate to the previous page to properly set up a new company";
                                NoAction noAction = new NoAction(title, message);
                                noAction.BringToFront();
                                noAction.ShowDialog();
                            }
                        }
                        else
                        {
                            cn.Close();
                            string title = "Unable to connect to server";
                            string message = "Sorry we are unable to connect to the company's database at this time, please verify the " +
                               "credentials provided are correct and try again !!";
                            NoAction noAction = new NoAction(title, message);
                            noAction.BringToFront();
                            noAction.ShowDialog();
                        }
                    }
                    else
                    {
                        Task<int> task = new Task<int>(() =>
                        {
                            try
                            {
                                serverLocation.Invoke(new Action(() =>
                                {
                                    if (!String.IsNullOrEmpty(portNumber.Text))
                                    {
                                        Settings.Default["Connection"] = passwordEncryption.Encrypt("Data Source=" + serverLocation.Text + "," + portNumber.Text + ";Database=BISK_POS;User ID= " + txtusername.Text +
                                    ";Password=" + password.Text);
                                    }
                                    else
                                    {
                                        Settings.Default["Connection"] = passwordEncryption.Encrypt("Data Source=" + serverLocation.Text + ";Database=BISK_POS;User ID= " + txtusername.Text +
                                        ";Password=" + password.Text);
                                    }
                                    Settings.Default.Save();
                                    cn = new SqlConnection(conn.MyConnection());
                                    cn.Open();
                                    cm = new SqlCommand("Select company_name from tblCompanyDetails", cn);
                                    dr = cm.ExecuteReader();
                                    dr.Read();
                                    if (dr.HasRows && !String.IsNullOrEmpty(dr[0].ToString()))
                                    {
                                        company = dr[0].ToString();
                                        companyCreated = true;
                                    }
                                    dr.Close();
                                    cn.Close();
                                }));
                                return 1;
                            }
                            catch (Exception ex)
                            {
                                Console.WriteLine(ex.ToString());
                                cn.Close();
                                return 2;
                            }

                        });
                        holdup.Visible = true;
                        button1.Enabled = false;
                        button2.Enabled = false;
                        task.Start();
                        int result = await task;
                        if (result == 1)
                        {
                            if (companyCreated)
                            {
                                SelectBranch selectBranch = new SelectBranch();
                                selectBranch.BringToFront();
                                selectBranch.ShowDialog();
                                if (!String.IsNullOrEmpty(Settings.Default.BranchID))
                                {
                                    holder.moveToLogin();
                                }
                                else
                                {
                                    string title = "Select Branch";
                                    string message = "To be able to login, you need to first select your branch";
                                    NoAction noAction = new NoAction(title, message);
                                    noAction.BringToFront();
                                    noAction.ShowDialog();
                                }
                            }
                            else
                            {
                                string title = "Company not set up";
                                string message = "Company hasn't been setup properly, navigate to the previous page to properly set up a new company";
                                NoAction noAction = new NoAction(title, message);
                                noAction.BringToFront();
                                noAction.ShowDialog();
                            }
                        }
                        else
                        {
                            string title = "Unable to connect to server";
                            string message = "Sorry we are unable to connect to the company's database at this time, please verify the " +
                                "credentials provided are correct and try again !!";
                            NoAction noAction = new NoAction(title, message);
                            noAction.BringToFront();
                            noAction.ShowDialog();
                        }
                        holdup.Visible = false;
                        button1.Enabled = true;
                        button2.Enabled = true;
                    }
                }
                else
                {
                    a1.Visible = true;
                    a2.Visible = true;
                    a3.Visible = true;
                    a4.Visible = true;
                    string title = "Essential fields empty";
                    string message = "Fields with asterisk have to be filled to continue";
                    NoAction noAction = new NoAction(title, message);
                    noAction.BringToFront();
                    noAction.ShowDialog();
                }
            }
            else
            {
                string title = "Passwords do not match";
                string message = "Passwords do not match, make sure they match to be able to continue";
                NoAction noAction = new NoAction(title, message);
                noAction.BringToFront();
                noAction.ShowDialog();
            }
        }
    }
}